Until last year. That's when, HPD says, "there was a kidnapping/robbery investigation involving the Cazares family and investigators in the homicide and robbery divisions doing research on the case came across the 1989 murder investigation."

Officers contacted the cold case squad, who gathered DNA evidence from the 2009 and 1989 investigations and sent to to the lab.

When it came back, Cazares was charged with murder and surrendered to authorities.